KARYOTYPIC STUDY OF SOME SPECIES OF FAMILY MOCHOKIDAE (PISCES, SILURIFORMES) - EVIDENCE OF FEMALE HETEROGAMETY

被引：9

作者：

AGNESE, JF ^{[1
]}

OBERDORFF, T ^{[1
]}

OZOUFCOSTAZ, C ^{[1
]}

机构：

[1] MUSEUM NATL HIST NAT, ICHTYOL LAB, F-75231 PARIS 05, FRANCE

来源：

JOURNAL OF FISH BIOLOGY | 1990年 / 37卷 / 03期

关键词：

chromosome number; heteromorphic chromosomes; karyotypes; Mochokidae; sex chromosomes;

D O I：

10.1111/j.1095-8649.1990.tb05868.x

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

Nine mochokid species, Hemysynodontis rnembranaceus, Synodontis bastiani, S. budgetti, S. courier;, S. filamentosus, S. orellifer. S. schall. S. sorex. S. violaceus, were investigated to determine their karyotype. Like many of the studied siluriforms, they were shown to possess 2N=54 or 2N=56 chromosomes, with a fundamental number varying from 95 to 102. In addition, our study revealed the existence of heteromorphic chromosomes in all the studied females of each species. These findings are discussed in relation to chromosome evolution within the siluriforms, and to differentiation of sex chromosomes in fishes. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：375 / 381

页数：7

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